Where should you mark the conduit when making a 12" stub up in 1" RMC with an 8" bender deduct?

When making a bend in rigid metal conduit (RMC), especially when creating a stub up, it's crucial to account for the total length you want the stub to be after bending. In this scenario, you need a 12-inch stub up using a bender that has an 8-inch deduct.

The deduct is used to determine where to mark the conduit for cutting to ensure that the resultant stub length after bending is correct. To achieve the desired stub length, the mark is made by subtracting the deduced length from the total stub length required.

Here, the required stub length is 12 inches, and you subtract the 8-inch bend deduct. This calculation would be:

12 inches (required stub) - 8 inches (deduct) = 4 inches.

Therefore, marking the conduit 4 inches from the end allows for a final stub height of 12 inches after the bend is made, making this answer the correct choice.